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A Control Strategy of Modular Multilevel Converter with Integrated Battery Energy Storage System Based on Battery Side Capacitor Voltage Control

Author

Listed:
  • Zhe Wang

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Hua Lin

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Yajun Ma

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract

A modular multilevel converter with an integrated battery energy storage system (MMC-BESS) has been proposed for high-voltage applications for large-scale renewable energy resources. As capacitor voltage balance is key to the normal operation of the system, the conventional control strategy for the MMC can be significantly simplified by controlling the individual capacitor voltage through a battery side converter in the MMC-BESS. However, the control strategy of the MMC-BESS under rectifier mode operation has not yet been addressed, where the conventional control strategy cannot be directly employed due to the additional power flow of batteries. For this defect, the rectifier mode operation of the MMC-BESS based on a battery side capacitor voltage control was analyzed in this paper, proposing a control strategy for this application scenario according to the equivalent circuit of MMC-BESS, avoiding passive impact on the state-of-charge (SOC) equalization of batteries. Furthermore, the implementation of a battery side converter control is proposed by simplifying the capacitor voltage filter scheme within phase arm, which enhances its performance and facilitates the realization of control strategy. Finally, simulation and experimental results validate the feasibility and effectiveness of the proposed control strategy.

Suggested Citation

  • Zhe Wang & Hua Lin & Yajun Ma, 2019. "A Control Strategy of Modular Multilevel Converter with Integrated Battery Energy Storage System Based on Battery Side Capacitor Voltage Control," Energies, MDPI, vol. 12(11), pages 1-21, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2151-:d:237367
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    References listed on IDEAS

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    1. Hui Liang & Long Guo & Junhong Song & Yong Yang & Weige Zhang & Hongfeng Qi, 2018. "State-of-Charge Balancing Control of a Modular Multilevel Converter with an Integrated Battery Energy Storage," Energies, MDPI, vol. 11(4), pages 1-18, April.
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    Cited by:

    1. Chuanping Wu & Yu Liu & Tiannian Zhou & Shiran Cao, 2022. "A Multistage Current Charging Method for Energy Storage Device of Microgrid Considering Energy Consumption and Capacity of Lithium Battery," Energies, MDPI, vol. 15(13), pages 1-15, June.
    2. Gianluca Brando & Efstratios Chatzinikolaou & Dan Rogers & Ivan Spina, 2021. "Electrochemical Cell Loss Minimization in Modular Multilevel Converters Based on Half-Bridge Modules," Energies, MDPI, vol. 14(5), pages 1-14, March.
    3. Phu Cong Nguyen & Quoc Dung Phan & Dinh Tuyen Nguyen, 2022. "A New Decentralized Space Vector PWM Method for Multilevel Single-Phase Full Bridge Converters," Energies, MDPI, vol. 15(3), pages 1-25, January.
    4. Dante Mora & Ciro Núñez & Nancy Visairo & Juan Segundo & Eugenio Camargo, 2019. "Control for Three-Phase LCL-Filter PWM Rectifier with BESS-Oriented Application," Energies, MDPI, vol. 12(21), pages 1-17, October.
    5. Subhashree Choudhury & Mohit Bajaj & Taraprasanna Dash & Salah Kamel & Francisco Jurado, 2021. "Multilevel Inverter: A Survey on Classical and Advanced Topologies, Control Schemes, Applications to Power System and Future Prospects," Energies, MDPI, vol. 14(18), pages 1-48, September.
    6. Luyun Jiao & Dongyuan Qiu & Bo Zhang & Yanfeng Chen, 2019. "A Hybrid Nine-Arm High-Voltage Inverter with DC-Fault Blocking Capability," Energies, MDPI, vol. 12(20), pages 1-15, October.
    7. Jaume Girona-Badia & Oriol Gomis-Bellmunt & Tomàs Lledó-Ponsati & Macià Capó-Lliteras & Carlos Collados-Rodriguez & Nicolaos Antonio Cutululis & Oscar Saborío-Romano & Daniel Montesinos-Miracle & Marc, 2022. "Design, Control and Testing of a Modular Multilevel Converter with a Single Cell per Arm in Grid-Forming and Grid-Following Operations for Scaled-Down Experimental Platforms," Energies, MDPI, vol. 15(5), pages 1-16, March.

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